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Sumul karfe bututu for high zafin jiki aiki ASTM A106, dace da high zafin jiki


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Dubawa

ASTM A106Gr.B bututun ƙarfe maras sumul shine ƙaramin ƙarfe mai ƙarancin carbon da ake amfani da shi, wanda ake amfani dashi sosai a masana'antar mai, sinadarai, da tukunyar jirgi.Kayan yana da kyawawan kayan aikin injiniya.An fi amfani dashi don jigilar ruwan zafi mai zafi kamar ruwa, mai, gas, da sauransu.

ASTM A106 bututun ƙarfe mara nauyi ya haɗa da matakai guda biyu: zane mai sanyi da birgima mai zafi.

Aikace-aikace

Sumul karfe bututu for high zafin jiki aiki ASTM A106, dace da high zafin jiki

Babban Daraja

Matsayi na babban ingancin tsarin ƙarfe na carbon: GR.A, GR.B, GR.C

Abubuwan Sinadari

 

Rubutu, (
Darasi A Darasi B Darasi C
Carbon, max 0.25A 0.3B 0.35B
Manganese 0.27-0.93 0.29-1.06 0.29-1.06
Phosphorus, max 0.035 0.035 0.035
Sulfur, max 0.035 0.035 0.035
Silikon, min 0.10 0.10 0.10
Chrome, maxC 0.40 0.40 0.40
Copper, maxC 0.40 0.40 0.40
Molybdenum, maxC 0.15 0.15 0.15
Nickel, maxC 0.40 0.40 0.40
Vanadium, maxC 0.08 0.08 0.08
A Ga kowane raguwa na 0.01% ƙasa da ƙayyadaddun iyakar carbon, haɓakar 0.06% manganese sama da iyakar ƙayyadaddun za a ba da izini har zuwa matsakaicin 1.35%.
B Sai dai in ba haka ba wanda mai siye ya ayyana, ga kowane raguwar 0.01% ƙasa da ƙayyadaddun iyakar carbon, za a ba da izinin haɓaka 0.06% manganese sama da iyakar ƙayyadaddun har zuwa matsakaicin 1.65%.
C Wadannan abubuwa biyar da aka haɗe ba za su wuce 1% ba.

Kayan Injiniya

Darasi A Darasi B Darasi C
Ƙarfin ɗamara, min, psi(MPa) 48000 (330) 60000 (415) 70000 (485)
Ƙarfin Haɓaka, min, psi(MPa) 30000 (205) 35000 (240) 40000 (275)
Tsayi Canza Tsayi Canza Tsayi Canza
Tsawaita cikin inci 2 (50 mm), min, %
Mahimmin ƙarancin gwajin tsiri mai tsayi na elongation, kuma ga duk ƙananan girman da aka gwada a cikin cikakken sashe
35 25 30 16.5 30 16.5
Lokacin daidaitaccen zagaye 2-in.(50-mm) ana amfani da samfurin gwajin tsayin ma'auni 28 20 22 12 20 12
Don gwajin tsiri mai tsayi A A A
Don gwaje-gwajen tsiri mai jujjuyawa, ragi ga kowane 1/32-in.(0.8-mm) raguwa a cikin kauri na bangon da ke ƙasa da 5/16 in. (7.9 mm) daga ƙaƙƙarfan ƙaramar ƙaranci na kashi mai zuwa za a yi. 1.25 1.00 1.00
A mafi ƙarancin elongation a cikin inci 2. (50 mm) za a ƙayyade ta ma'auni mai zuwa:
e=625000A 0.2 / U 0.9
don raka'a-laba, da
e=1940A 0.2 / U 0.9
don raka'a SI,
inda:
e = ƙaramar haɓakawa a cikin 2 in. (50 mm), %, zagaye zuwa mafi kusa 0.5%,
A = yankin giciye na samfurin gwajin tashin hankali, a cikin.2 (mm2), dangane da ƙayyadaddun diamita na waje ko ƙayyadaddun ƙayyadaddun diamita na waje ko faɗin ƙirar ƙira da ƙayyadadden kauri na bango, zagaye zuwa mafi kusa 0.01 in.2 (1 mm2) .(Idan yankin da aka lissafta haka yana daidai da ko mafi girma fiye da 0.75 in.2 (500 mm2), to za a yi amfani da ƙimar 0.75 in.2 (500 mm2).
U = ƙayyadadden ƙarfin ƙarfi, psi (MPa).

Bukatar Gwaji

Baya ga tabbatar da abun da ke tattare da sinadarai da kaddarorin injina, ana yin gwaje-gwajen hydrostatic daya bayan daya, kuma ana yin gwaje-gwajen flaring da flattening..Bugu da ƙari, akwai wasu buƙatu don ƙananan ƙwayoyin cuta, girman hatsi, da decarburization Layer na bututun ƙarfe da aka gama.

Ƙarfin Ƙarfafawa

Ikon samarwa: Ton 1000 a kowane wata kowane Grade na ASTM SA-106 Bututu Karfe

Marufi

A cikin daure da A cikin Akwatin katako mai ƙarfi

Bayarwa

7-14 kwanaki idan a stock, 30-45 kwanaki don samar

Biya

30% depsoit, 70% L/C ko B/L kwafin ko 100% L/C a gani

Cikakken Bayani

Tubu mai tukunyar jirgi


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